Electricity Unit Assessment Practice

Which material is a conductor?

• A plastic spoon

• A metal nail

• A rubber chicken

• A wooden block

Which material is an insulator?

• A copper penny

• An aluminum wire

• Dry air

• A metal nail

What is an insulator?

• A material that allows charges to flow easily.

• A material that does not allow charges to flow easily.

• A material that creates electricity.

What is an conductor?

• A material that allows charges to flow easily.

• A material that does not allow charges to flow easily.

• A material that creates electricity.

What is voltage?

• The opposition presented to the current by a material or device. The electrical "friction".

• The rate at which electrical energy is converted into other forms of energy.

• The rate at which charges pass through a given point.

• The difference in electrical potential energy between two points.

What is current?

• The opposition presented to the current by a material or device. The electrical "friction".

• The rate at which electrical energy is converted into other forms of energy.

• The rate at which charges pass through a given point.

• The difference in electrical potential energy between two points.

What is resistance?

• The opposition presented to the current by a material or device. The electrical "friction".

• The rate at which electrical energy is converted into other forms of energy.

• The rate at which charges pass through a given point.

• The difference in electrical potential energy between two points.

Check ALL things an electrical circuit needs

• Wire

• Load/Resistor

• Battery/Power Source

• Switch

All loads in a series circuit have the same _________________.

What is missing from this circuit?

• A switch

• A light

• A battery

• A wire